Aosibao (Shanghai) Trading Co., Ltd. is a Chinese branch of the Spanish Osborne Group, located in Changning, Shanghai. The Osborne Group is one of the old food & beverage companies in the world, founded in 1772 by Thomas Osborne. It is a Spanish company with a history of more than 200 years and is committed to providing high-quality food and beverages to consumers around the world. In 1983, it acquired Sánchez Romero Carvajal, a Sanchez ham processing plant, creating today's brand 5J Cinco Jotas.

5J Cinco Jotas is a national treasure in Spain, with 100% purebred Iberian ham being certified by the Spanish government's high-level black label. 5J uses 100% purebred Iberian black-haired pig produced in southwestern Spain as raw material, and feeds on pure natural acorns in free range. Only by fully meeting these three conditions can one obtain the Spanish high-grade black mark certification 100% purebred Iberian ham. Since 1879, the ham craftsmanship in Hab Fruit, the birthplace of the acorn feeding Iberian ham, hand-cured ham craftsmanship in the 130s, 5J Cinco Jotas 100% Iberian ham is a true masterpiece of nature and time, every A piece of ham needs to be carefully marinated and matured for more than three to four years, and is world-renowned for its industry-leading edible quality and safety standards.